Maytag mde-mdg21pra ユーザーズマニュアル

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©2004 Maytag Appliances Company
16022904 Rev. 0
15
Troubleshooting Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
Air Shutter Adjustment
The air shutter has been
stamped "LP" and "N" (for
Natural).  Loosen the screw
holding the shutter, rotate the
shutter until the end of the slot
(labeled for the gas to be used)
contacts the screw.  Tighten the
screw to lock the shutter in
place.
Motor Test Cord
A motor test cord may be used to electrically check
operation of the various electrical components without
removing them from the unit.  Testing in this manner
determines whether or not the part will function
independently of other electrical components.  In order to
make an accurate test, proper connection of the motor
test cord is important.
Drive Motor Test
The motor may be checked in the dryer or removed and
checked.
Two test leads are required to check operation of the drive
motor.   To check the motor for operation, hook the test
cord to terminals 4 and 5.
Centrifugal Switch
Checking heater/gas valve and motor:
1. Disconnect the wire harness from the motor.
2. Place ohm meter leads to terminals 1 and 2.
3. With your thumbs, depress the BROWN disc
located behind the motor switch on the motor
shaft.   The BROWN disc actuates the lever of
the motor switch when the motor is at rest.  At
optimum motor speed, the disc moves away from
the switch lever.  When the disc is pressed in
toward the windings, the actuator arm of the
centrifugal switch will be relaxed.  This allows the
contacts to close, completing the heater circuit.
If no continuity is found when the disc is
depressed, change the centrifugal switch.
"Brown" Disc
Switch Actuator
Motor
Switch
Side View of Motor
LP
Natural
Gas Type
0.65
Orifice 
Size
Specific 
Gravity
Pressure
Switch
BTU Per
 Cu. Ft
1050
2050
3.5
11
1.53
41
53
Winding
Terminal
Terminal
Ohms
Start
3
4
3.00
Run
5
4
2.25